13228820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{383}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 30578688

約数和(自身を除く): 17349868

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 157, 220, 314, 383, 628, 766, 785, 1532, 1570, 1727, 1915, 3140, 3454, 3830, 4213, 6908, 7660, 8426, 8635, 16852, 17270, 21065, 34540, 42130, 60131, 84260, 120262, 240524, 300655, 601310, 661441, 1202620, 1322882, 2645764, 3307205, 6614410, 13228820]

約数ペア:

[(1, 13228820), (2, 6614410), (4, 3307205), (5, 2645764), (10, 1322882), (11, 1202620), (20, 661441), (22, 601310), (44, 300655), (55, 240524), (110, 120262), (157, 84260), (220, 60131), (314, 42130), (383, 34540), (628, 21065), (766, 17270), (785, 16852), (1532, 8635), (1570, 8426), (1727, 7660), (1915, 6908), (3140, 4213), (3454, 3830)]